This Week in Parasitism (general)
TWiP is a monthly netcast about eukaryotic parasites. Vincent Racaniello, Dickson Despommier, and Daniel Griffin, science Professors from Columbia University, deconstruct parasites, how they cause illness, and present a case study each episode for your solution.

The triple TWiP solve the case of the Peace Corp Veteran with Eosinophilia, and discuss the genome sequence of the hyper-prevalent parasitic eukaryote Blastocystis.

Hosts: Vincent Racaniello, Dickson Despommier, and Daniel Griffin

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Case Study for TWiP 140

From Dr. Arthur Mumelo, northern Kenya. One-year-old girl. Brought by mother with skin lesions that developed a week prior. The lesions are five in total – on the forehead, neck, back, chest and right arm. The lesions look like boils/furuncles but keep changing size and appearance – like something is moving under the skin. They are painful and itchy. Child is breastfeeding well. No other complaints. Child was born at Nyahururu County Referral Hospital. Gets vaccinations at Melwa Health Centre (Rural), vaccinations are up to date. They live in a wooden house with a dirt floor, roofed with corrugated iron sheets. The house has two rooms. They sleep on raised beds. There is a big community dam in the neighborhood, with stagnant water throughout the year. They don’t use mosquito nets. They have reliable clean water supply from the government. They have one dog but the neighbors’ dogs also visit their compound and living area. They hang their clothes on the clothesline after washing; never dry their clothes on the grass. Clothes not hot-ironed. On Examination; Child is breastfeeding well, afebrile, no pallor, no jaundice, not in distress. Occipital lymphadenopathy; tender, mobile. Furuncles on the forehead, chest neck, back and right arm. They are 1-3cm in diameter and 0.5 cm high, tender, have a central punctum from which serosanguineous fluid is discharging.  This is a rural health centre – the only labs done are a peripheral blood film – which showed increased eosinophils and neutrophils. HIV test – negative.

Send your case diagnosis, questions and comments to twip@microbe.tv

Music by Ronald Jenkees

Direct download: TWiP140.mp3
Category:general -- posted at: 1:11pm PDT

Hosts: Vincent Racaniello and Dickson Despommier

Vincent and Dickson review a multistate outbreak of cyclosporiasis caused by the single-celled coccidian parasite Cyclospora cayetanensis.

The day after recording this episode, ProMedMail reported that the outbreak of cyclosporiasis had spread to Texas.

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Contact

Send your questions and comments (email or mp3 file) to twip@twiv.tv

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Direct download: TWiP057.mp3
Category:general -- posted at: 8:35am PDT

Hosts: Vincent Racaniello and Dickson Despommier

Vincent and Dickson meet with Judith Straimer and Marcus Lee to discuss their method for site-specific genome editing in Plasmodium falciparumusing zinc finger nucleases.

Right-click to download TWiP #46 (46 MB .mp3, 64 minutes).

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Contact

Send your questions and comments (email or mp3 file) to twip@twiv.tv.

Direct download: TWiP046.mp3
Category:general -- posted at: 6:52am PDT

Vincent and Dickson review Wuchereria bancrofti, the nematode that causes lymphatic filariasis, also known as elephantiasis.

Direct download: TWiP025.mp3
Category:general -- posted at: 6:48pm PDT

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